EP0074578B1 - Sécateur à effet de levier - Google Patents

Sécateur à effet de levier Download PDF

Info

Publication number
EP0074578B1
EP0074578B1 EP82108123A EP82108123A EP0074578B1 EP 0074578 B1 EP0074578 B1 EP 0074578B1 EP 82108123 A EP82108123 A EP 82108123A EP 82108123 A EP82108123 A EP 82108123A EP 0074578 B1 EP0074578 B1 EP 0074578B1
Authority
EP
European Patent Office
Prior art keywords
handle
pin
cutting blade
lever
sliding
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
EP82108123A
Other languages
German (de)
English (en)
Other versions
EP0074578A1 (fr
Inventor
Günter Munkes
Bruno Suck
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wolf Geraete GmbH
Original Assignee
Wolf Geraete GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Wolf Geraete GmbH filed Critical Wolf Geraete GmbH
Priority to AT82108123T priority Critical patent/ATE10896T1/de
Publication of EP0074578A1 publication Critical patent/EP0074578A1/fr
Application granted granted Critical
Publication of EP0074578B1 publication Critical patent/EP0074578B1/fr
Expired legal-status Critical Current

Links

Images

Classifications

    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
    • A01G3/00—Cutting implements specially adapted for horticultural purposes; Delimbing standing trees
    • A01G3/02—Secateurs; Flower or fruit shears
    • A01G3/025—Secateurs; Flower or fruit shears having elongated or extended handles
    • A01G3/0251—Loppers, i.e. branch cutters with two handles

Definitions

  • the invention relates to secados with a pulling cut and with leverage support, with a first cutting blade which is rigidly connected to a first handle, with a second cutting blade which is articulated via an elongated slot on a sliding pivot pin of the first handle, with a second handle which is articulated on the first handle via a swivel pin offset laterally with respect to the sliding joint pin, and with an intermediate lever which is articulated on the one hand on the second cutting blade via a first pin and on the other hand on the second handle piece via a second pin.
  • Such secateurs are known from US Patent No. 2528816.
  • the intermediate lever the longitudinal movement of which is controlled either by a handlebar or by guide pins on the second handle, merely serves to transmit power from the second handle to the second cutting blade, which is thereby guided on a specific movement path with respect to the first cutting blade.
  • the power transmission is essentially the same as in scissors in which the second handle lever is articulated directly on the second cutting blade, as is known for example from GB-PS No. 590646.
  • the invention has for its object to further improve such pruning shears in such a way that it is possible to work in an ergonomically favorable manner with even less effort, an increased cutting force being achieved.
  • the object is achieved in that the intermediate lever between the first and the second pin is articulated with a further pivot pin on the lever forming the first cutting blade and the first handle, and in that the joint between the second handle and the intermediate lever is designed as a sliding joint .
  • the double lever arrangement provided according to the invention ensures that a clean pulling cut with high cutting force is achieved by an extended closing path of the handles.
  • the pruning shears according to the invention are thus distinguished by an improved function with easy handling compared to the prior art, because the force transmission takes place in a particularly favorable manner and force-consuming frictional interventions are largely prevented.
  • a first cutting blade 10 of the scissors is rigidly connected to a first handle 12.
  • the second cutting blade 14, which is designed as an anvil and interacts with the first cutting blade 10, has an elongated slot 16 in an extension 15, with which it is slidably and pivotably mounted on a sliding pivot pin 18 which is inserted in the first handle 12.
  • the second handle 20 is articulated to the first handle via a pivot pin 22.
  • the axes of the sliding joint pin 18 and the pivot pin 22 lie at a lateral distance from one another, on both sides of a line which is defined by the extension of the cutting edge of the first cutting blade 10.
  • a double-armed intermediate lever 24 is arranged between the second cutting blade 14 and the second handle 20, which is designed as a one-armed lever.
  • This generally S-shaped intermediate lever 24 is articulated in its central portion via a pivot 26 on the first handle 12.
  • the axis of this pivot pin 26 is offset from the axis of the pivot pin 22 after the tip of the first cutting blade 10.
  • the axes of 18, 26 and 22 lie on the corners of a triangle which forms almost a right angle at 22, with the shorter hypotenuse between the axes of 22 and 26 and the longer hypotenuse between the axes of 22 and 18.
  • the intermediate lever 24 is articulated on the second cutting blade 14 via a first pin 28.
  • a second pin 30 carried by the other lever arm of the intermediate lever 24 engages in an elongated hole 32 of the second handle 20, so that this second handle acts as a one-armed lever which is articulated in the first handle 12 above the pivot pin 22 and via the intermediate lever 24 the second cutting blade 14 acts.
  • a double lever ratio is achieved, which results in an increased cutting force effect with a pulling cut when the handles are extended relative to one another.
  • the second handle 20 pivots the intermediate lever 24 about the pivot pin 26 over the second pin 30 and sets the second cutting blade 14 in a simultaneous pivoting movement about the sliding joint pin 18 and into a translational movement, which is caused by the slot guide 16.
  • the two cutting blades 10 and 14 are not only pivoted against each other, but also with their cutting edges moved translationally to one another, which results in the pulling cut, which results in a particularly favorable cutting effect.
  • the cutting edges of the two cutting blades and the cutting tips face each other.
  • shears shown in the drawing are particularly suitable for horticultural purposes and here in particular as pruning shears, but can also be used if the cutting blades are designed accordingly be designed for other purposes, for example as wire scissors, bone scissors or metal scissors.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Ecology (AREA)
  • Forests & Forestry (AREA)
  • Environmental Sciences (AREA)
  • Scissors And Nippers (AREA)
  • Pens And Brushes (AREA)
  • Dental Preparations (AREA)
  • Polishing Bodies And Polishing Tools (AREA)

Claims (3)

1. Sécateur à coupe par pression progressive, renforcé par un effort de levier, qui comporte une première lame de coupe (10) reliée rigidement à une première poignée (12), une seconde lame de coupe (14) articulée par une fente sous forme de boutonnière (16) à un axe d'articulation à coulissement (18) de la première poignée (12), une seconde poignée (20) articulée à la première poignée par un pivot d'articulation (22) décalé latéralement par rapport à l'axe d'articulation à coulissement (18), et un levier intermédiaire (24) articulé, d'une part, à la seconde lame de coupe (14) par un premier pivot (28) et, d'autre part, à la seconde poignée (12) par un second pivot (30), le sécateur étant caractérisé en ce que le levier intermédiaire (24) est articulé, entre le premier et le second pivot (28, 30), par un autre pivot (26) au levier formant la première lame de coupe (10) et la première poignée (12), et en ce que l'articulation entre la seconde poignée (20) et le levier intermédiaire (24) est prévue sous la forme d'une articulation à coulissement (30, 32).
2. Sécateur suivant la revendication 1, caractérisé en ce que le levier intermédiaire (24) se présente dans l'ensemble en forme de S, le pivot supplémentaire (26) se trouvant en son milieu et agissant à l'endroit de transition entre la première poignée (12) et la première lame de coupe (10).
3. Sécateur suivant les revendications 1 et 2, caractérisé en ce que les axes géométriques fixes, par rapport à la première poignée, de l'axe d'articulation à coulissement (18), du pivot (26) et du pivot d'articulation (22) se trouvent aux points d'angles d'un triangle approximativement rectangle et en ce que le sommet de l'angle droit coïncide avec l'axe géométrique du pivot d'articulation (22).
EP82108123A 1981-09-11 1982-09-02 Sécateur à effet de levier Expired EP0074578B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT82108123T ATE10896T1 (de) 1981-09-11 1982-09-02 Gartenschere mit hebelkraftunterstuetzung.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3136119A DE3136119C2 (de) 1981-09-11 1981-09-11 Gartenschere mit ziehendem Schnitt und mit Hebelkraftunterstützung
DE3136119 1981-09-11

Publications (2)

Publication Number Publication Date
EP0074578A1 EP0074578A1 (fr) 1983-03-23
EP0074578B1 true EP0074578B1 (fr) 1984-12-27

Family

ID=6141423

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82108123A Expired EP0074578B1 (fr) 1981-09-11 1982-09-02 Sécateur à effet de levier

Country Status (4)

Country Link
EP (1) EP0074578B1 (fr)
AT (1) ATE10896T1 (fr)
DE (1) DE3136119C2 (fr)
ES (1) ES275407Y (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4023559A1 (de) * 1990-07-25 1992-01-30 Gardena Kress & Kastner Gmbh Schere, insbesondere garten- bzw. astschere

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4772146A (en) * 1985-09-14 1988-09-20 Canon Kabushiki Kaisha Recording apparatus with a platen detachably incorporated therein
GB9219269D0 (en) * 1992-09-11 1992-10-28 Fiskars Ab Oy Scissor action tools
DE102004032464A1 (de) * 2004-07-05 2006-02-16 Wolf-Geräte AG Insbesondere als Heckenschere ausgebildete Handschere
ITFI20040178A1 (it) * 2004-08-06 2004-11-06 Luigi Tellini Forbici con taglio a scorrimento
WO2008010080A2 (fr) * 2006-07-13 2008-01-24 Velandia Nieto, Bernardo Sécateur à levier
US7716840B2 (en) * 2006-12-15 2010-05-18 Emerson Electric Co Tubing cutter
GB2444912B (en) * 2006-12-19 2009-07-08 Ho Cheng Garden Tools Co Ltd Energy saving shears
DE202008014291U1 (de) 2008-10-17 2009-01-22 Hidde, Axel R., Dr. Schneidende Handwerkzeuge
ITUD20130028A1 (it) * 2013-02-28 2014-08-29 Giorgetto Ambroset Cesoia azionabile manualmente per tagliare o potare rami
CN118511749A (zh) * 2024-06-13 2024-08-20 苏州深莓智能科技有限公司 一种剪切刀

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB590646A (en) * 1944-06-09 1947-07-24 Allan Robert Blackwood Improvements in or relating to garden shears
US2528816A (en) * 1948-04-21 1950-11-07 Elizabeth M Boyer Hedge shears
GB819545A (en) * 1957-01-21 1959-09-02 Stanley Neville Hoare Improvements in or relating to pruning shears
DE1063848B (de) * 1957-06-12 1959-08-20 Weisenburger A Schere mit ziehendem Schnitt fuer Baumschulen
GB2050226B (en) * 1979-05-11 1982-11-10 Stebbings L A Cutting tools

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4023559A1 (de) * 1990-07-25 1992-01-30 Gardena Kress & Kastner Gmbh Schere, insbesondere garten- bzw. astschere

Also Published As

Publication number Publication date
EP0074578A1 (fr) 1983-03-23
DE3136119C2 (de) 1985-06-13
ES275407Y (es) 1984-12-01
ES275407U (es) 1984-04-16
DE3136119A1 (de) 1983-03-31
ATE10896T1 (de) 1985-01-15

Similar Documents

Publication Publication Date Title
DE69707784T2 (de) Werkzeug mit variabler Kraft
DE69604475T2 (de) Handwerkzeug mit Drehgelenk
DE69800491T2 (de) Baumschere
DE60128533T2 (de) Hebelschere
DE10102089C1 (de) Chirurgisches Instrument
DE69500365T2 (de) Handgartenschere mit kombinierter Bewegung
DE60107760T2 (de) Schneidegerät, insbesondere Heckenschere
EP0176784B1 (fr) Sécateur pour arbres
EP0421108A1 (fr) Cisailles à main, en particulier sécateur, cisailles à haies et/ou de jardinage
EP0485518B1 (fr) Secateur
EP0074578B1 (fr) Sécateur à effet de levier
EP1625784A1 (fr) Outil de coupe manuel, en particulier un taille-haie ou sécateur
DE8015246U1 (de) Handzange zum Abisolieren der Enden elektrischer Leiter
DE2708290A1 (de) Schneidzange fuer klemmschellen
DE10136964A1 (de) Chirurgisches Instrument
DE2731471A1 (de) Chirurgische schere
DE8900376U1 (de) Chirurgisches Rohrschaftinstrument
EP1319456B1 (fr) Découpeur de câbles
DE202006019208U1 (de) Baumschere
EP1827770B1 (fr) Cisaille, en particulier taille-haie
EP0635199B1 (fr) Outil avec deux bras et deux poignées
DE3922016C2 (fr)
DE69607645T2 (de) Mehrzweckzange
DE67738C (de) Scheere mit Parallelogramm - Bewegung
DE69232120T2 (de) Taschenwerkzeug mit einziehbaren Backen

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): AT BE CH FR GB IT LI NL SE

17P Request for examination filed

Effective date: 19830623

ITF It: translation for a ep patent filed
GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Designated state(s): AT BE CH FR GB IT LI NL SE

REF Corresponds to:

Ref document number: 10896

Country of ref document: AT

Date of ref document: 19850115

Kind code of ref document: T

ET Fr: translation filed
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 19900809

Year of fee payment: 9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 19900824

Year of fee payment: 9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 19900829

Year of fee payment: 9

Ref country code: CH

Payment date: 19900829

Year of fee payment: 9

Ref country code: AT

Payment date: 19900829

Year of fee payment: 9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 19900912

Year of fee payment: 9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 19900930

Year of fee payment: 9

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Effective date: 19910902

Ref country code: AT

Effective date: 19910902

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Effective date: 19910903

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Effective date: 19910930

Ref country code: CH

Effective date: 19910930

Ref country code: BE

Effective date: 19910930

BERE Be: lapsed

Owner name: WOLF-GERATE G.M.B.H.

Effective date: 19910930

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Effective date: 19920401

GBPC Gb: european patent ceased through non-payment of renewal fee
NLV4 Nl: lapsed or anulled due to non-payment of the annual fee
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Effective date: 19920529

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

EUG Se: european patent has lapsed

Ref document number: 82108123.9

Effective date: 19920408